Process and apparatus for treating gases, fumes, and the like



Dec. .13, 1927.

G. s. PURTYMAN PROCESS AND APPARATUS FOR TREATING GASES, FUMES, AND THELIKE Sheets-Sheet 1 Filed Sept. 28. 1925 {N A A INVENTOR 4202?? 61Pang/ma.

' ATTORNEY Dec. 13, 1927.

G. S. PURTYMAN PROCESS AND APPARATUSFOR TREATING GASES, FUMES, Am) THELIKE Filed Sept. 28, '1925- 2 Sheets-Sheet '2 Ex v.

Patented Dec. 13, 1927.

GEORGE S. IURTYMAN, OF CLEMENCEAU, ARIZONA.

raoonss AnnnrrAnA'rUs ron TREATING GASES, FUMES, AND ran LIKE.

Application filed September 28, 1925. Serial No. 59,216.

This invention relates to a process and apparatus for treating gasesissuing from smelters or other metallurgical apparatus or produced inother metallurgical operations,

blast furnaces and the like, or other gases containing noxious orobjectionable particles of solid, liquid or, gaseousma tter. Its objectis to produce a new and improved apparatus andprocess forseparatingparticles of solid, liquid or gaseous matterfrom fumes, smokesor gases in a more efficient and practical way than has heretofore beenthe case.

The nature of the apparatus and process will be best understoodand'followed from a consideration of the following descriptionconsidered with the accompanying drawings. In the drawings whichaccompany this description paratus embodying my invention. Fig. 2 is alongitudinal sectional elevation ofFig. 1.

Fig. 3 is a transverse section taken on the line 33.of Fig. 1 andlooking in the direction of the arrows.

Fig. 4 represents a transverse section on the line 44 of Fig. 1 lookingin the direction of the arrows.

of Fig. 1 looking in the direction of the arrows. p v 5 Referring to thedrawings numeral 1 indicates the main bod portion or chamber of thewasher-orcon enser. A cone shaped body 2 leads from this main bodyport1on or chamber to the stack or chimney 3 affording an outlet for thewashed or purified gases. The gases to be washed or purified enter bymeans of the inlet 4 and are assisted in their travel through theapparatus by an injection of wet steam from the pipe 5 entering aconstricted portion of the gas inlet ipe 4, thereby insuring acontinuous trave of the gases through the apparatus. The inlet 4 isflattened, as shown in Figs. 1 and 4, at its point of entry in the part1 of the apparatus into two parts 6 and 6' conforming withthe angular'or con- 5 conical shaped bottom 7 is constructed the Fig. 1 representsa plan view of the ap Fi 5 is a transverse section on line 5-5 icalshaped bottom 7 of the apparatus. The V angular or conical shaped bottomcontinuesthroughout the length of the ap aratus fromor triangular, I donot-desire to be restricted to this particular shape as I may make thebottom of arcuate shape either convex or concave or any equivalentshape. Theparts 6-6 of the inlet means necessarily must be made toconform with the shape that the bottom 7 assumes.

As is shown in Figs. 1, 3 and 4the apparatus is provided with waterspray nozzles 10 entering both sides of the apparatus through the.verticahwalls 8 thereof. .These spray atomizin'g nozzles 10 are suppliedwith water from the water linell and with air from the air line 12, thepurpose of the air being to forcibly inject and minutely divide thewater as it leaves the nozzles 10. Suitable valves 13 and 14respectively "control the water line 11 and the air line 12 while valves15 and 16 respectively control the admission of water and air to each ofthe individual nozzles 10 as indicated in Figs. 1, 3 and 4. As

shown in Figs. 1, 3 and 4 the main water and air lines. 11 and 12 areconnected through suitable pipe connections 17 and 18 with theindividual nozzles 10 and their connections.

At the top of the angular bottom 7 there is provided a spray 19 composedof a pipe perforated at frequent intervals desi ed to spray jets ofwater in a vertical an lateral to the outlet 20 in the stack- 3.

' The water, condensed steam and collected particles flow out from theportions or compartments 1 and 2through the discharges 21 arranged atthe base of the angular or conical portion 7 and passing through theside walls 8. The quantity of water and contained particles leaving theapparatus through the discharges 21 is usually sulficient to efiectivelyseal these discharges from the outflow of gas or fumes through them,

but when the conditions are such that the quantity of water used and thematter contained by it after use does not accomplish construction or maybe constructed of any hung from the top of the body portion 2 or I aconstricting or compressing action due to other materials capable ofresisting any cor-. rosive or destructive action of the gases treated.

Within the interior of the conical body portion 2 baffles may beprovided for 001-,

lecting and arresting entrained particles. These baflles may conslst ofwires or screens otherwise sup orted therein, and should be constructed0 such material that the corrosive action of the gases will be resisted.The V baflies may be provided in only a part of the chamber orthroughout its whole length.

In operation gases or fumes enter the inlet 4 and are assisted in theirpassage through the ap aratus by the injection of wet steam from t epipe 5. The steam not only assists the motion of the gases throughtheapparatus but moistens and permeates the solid or semi-solid mattercontained therein. The

steam contained in and surrounding the particles becomes condensedthrough the cooling action of the water sprays, whereby a rapidprecipitation occurs not only due to the steam condensing-within theparticles but u on them also. The stream of gas is. thenattened out intotwo inclined portions in the parts 6-6 and then passes along the top ofthe angular or conical shaped bottom 7 of the portions or compartments 1and 2. While the gases are thus spread out in a roof shaped fashion theyare subjected to the action of the wet'steam from the pipe 5, water andair from the nozzles 10 and the water from the waterjpray 19. After thegases leave portion or compartment 1 they enter the conical portion orcompartment 2 of the apparatus where they are subjected to the graduallydecreasing cross-sectional area of the conical part 2 while beingsubjected to the action of water spray 19. After the treatment in theportion 2, the gases leave by'means of the outlet 20 and escape throughthe stack 3,

Having described myinvention, what I claim and desire to secure byLettersPatent 1s:

w 1. An apparatus for treating gases comprising a main chamber and aconical chamber attached at its base to the mainchamber, spray means foreach of said chambers,

- said spray chamber.

a floor for said chambers formed of inclined portions, gas inlet meansfor the main chainber conforming to the shape of said floor and gasoutlet means in said conical portion.

2. An apparatus for treatingv gases comprising a main chamber and aconical chamber attached at its base to the main chamber, spray meansfor each of said chambers, a floor for said chambers formed of reverselyinclined intersecting portions, gas inlet means for the main chamberconforming in shape to the shape of said fioor and gas outlet means insaid conical portion.

I 3.'An apparatus for treating gases comprising a spray chamber having afloor comprising reversely inclined intersecting portions with the lineof intersection of said portions being the uppermost portion of saidfloor, and means for spreading gases as a layer over said portions.

4- An apparatus for treating gases comprising a main chamber and aconical chamber attached at its base to said main cham- "ber, spraymeans for each of said chambers,

a floor for said chambers comprising reversely inclined intersectingportions with the line of intersection being the uppermost portion ofsaid floor, gas inlet means for said main chamber conforming in shapewith the shape of said floor and gas outlet means in said conicalportion.

floor and being much less in cross sectional area than the area of thecross section of 6. An apparatus for treating gases comprising a spraychamber having a floor comprising reversely inclined portions saidportions sloping downwardly toward the sides of the spray chamber andconduit means for spreading gases as a layer over said.

portions,- said conduit means being less in cross sectional area thanthe area of the cross section of said spray chamber.

7. An apparatus for treating gases comprising a spray chamber having afloor, said floor comprising reversely inclined intersecing portionssloping downwardly from the line of intersection to the sides of thechamber, and spray means near the line of intersection and extendingparallel therewith.

8. An apparatus for treating gases comprising a main chamber and aconical chamber attached at its base to the main chamher, a floor forsaid chambers formed of reversely inclined portions sloping downwardlytoward the sides of'said chambers, spray means near the highest portionof said floor 5. Apparatus for treating gases compris-' and extendingthe length of both chambers, and other spray means for the main chamherand positioned in the walls thereof.

- 9. An apparatus for treatinggases comprising a main chamber and aconical chamber attached at its base to said main chamber, spray meansfor each of said chambers, a floor for said chambers comprisingreversely inclined portions, said portions sloping downwardly toward thesides of the chamber, gas inlet means for said main chamber conformingin shape with the shape of said floor, and gas outlet means in saidconical chambe g 10. An apparatus for treating gases comprising a spraychamber having a floor, said floor comprising reversely inclinedportions sloping downwardly from a position within the interior of saidchamber toward the sides of said chamber, and' spray meansnear 20 thehighest portion of said floor.

In testimony whereof I afiix my signature.

GEORGE s. PURTYMAN.

